Metallic pipe



G. H. OHARLS METALLIC PIPE.

APPLICATION FILED AUG. 27, 1908.

Attorney Inventor Patented Nov. 3, 1908.

Witnesses:

GEORGE HERBERT CHARLS, OF MIDDLETOWN, OHIO METALLIG PIPE Specification of Letters Patent.

Patented Nov. 3, 1908.

Application filed August 27, 1908. Serial No. 450,465.

To all "1071 om it may concern:

Be it known that I, GEORGE HERBERT Clip-unis, a citizen of the United States, residing at .\liddletown, Butler county, Ohio, have invented certain new and useful Improvements in lsletallic Pipes. of which the following is a specification. v

This invention, relating to the construction of metallic pipes, will be readily understood from the following description taken in connection with the accoi'npanying drawing in which Figure l is a side elevation of a pipe exemplifying my invention: l ig. 2 a vertical transverse section of the same: Fig. 3 a vertical transverse section of a portion of the longitudinal joints: Fig. 4 a horizontal section of the pipe: Fig. 5 a plan of one of the corrugated sheets employed in making the pipe:

and Fig. 6 a horizontal section illustrating a modified form for the joint-bars. 3 and 4 are upon a scale larger than the other figures of the drawing.

In the drawing:-1, indicates an upper semi cylindrical pipe section, corrugated transversely of the pipe: 2, a cooperating similar lower pipe-section, the upper and lower sections being put together in such manner as to break joint, and one end of a given section entering the contiguous end of the succeeding section to the extent of one corrugation: 3, the entering end of a section, being that end of the section which goes inside the succeeding section and which may be spolen of as the small end of the section: 4, the opposite or external end of the section, going outside the entering end of the contiguous sec-. tion, and which may be spoken of as the large end of the sect'on: 5, angle bars secured to the longitudinal edges of the section, these bars having their outwardly projecting flanges in position to join each other and form longitudinal joints between the sections, their inner flanges being, preferably, disposed within the sections and being secured to the inner elements of the corrugations: 6, joint-bolts clamping the angle bars together to secure the upper and lower members of the pipe to gether: 7, half-length sections to piece out the upper and lower halves of the pipe rendered otherwise irregular by reason of the break joint disposition of the sections: and 8, the corrugated sheet before being bent to form a section.

In the illustration'l have shown the pipe being formed of an upper and lower half, the

two halves being united. by two longitudinal joints, but it is to be understood that, if desired, the pipe may be formed of more than two segments and with more than two longitudinal joints. Pipes of the improved construction are made of metal from number eight to number twelve gage, and of diameters ranging from eight inches to seven feet, and it is in the larger sizes that it may in some cases be found desirable to form the pipe of more than two segments.

If a given semi-circular section of the pipe be formed of the same diameter at each end of the section, the sections will go together satisfactorily at their connecting ends, and the angle bars can be bolted together, but, owing to the fact that one end of a section is disposed within the contiguous end of the next section, the angle bars ill not meet each other and form a fair joint at all points in the length of the pine. This might not be objectionable under certain circumst anccs, but where fair tightness of the pipe is desired, the sheets from which the sections are formed are tapered as shown in Fig. 5, thus giving each section a small and a large end, the degree of tapering of the sheet being such as to compensate for the thlOl-IDGSS of the metal of the entering end of a section and permit the angle bars to meet each ot her.

In Fig. 4 the angle bars are illustrated as being straight their inner flanges projecting across between the inner project-ions and the corrugations of the pipe. This is economical construction but it has the disadvantage of deficiency in water-tightness, and undesired deficiency in the capacity of the pipe-sections to nest inside each other for shipment. The modification illustrated in'Fig, 6 avoids the two defects mentioned, the angle bars being crimped so that. the sinusoidal flanges correspond with and lit against the corrugated metal to which they are secured.

I claim 1. A sheet metal pipe comprising, segmental sections joining at their ends and at their longitudinal edges and joining each other in break-joint order at their longitudinal edges, angle bars secured to the longitudinal edges of the sections and projecting outwardly therefrom, and joint-bolts uniting the outwardly projecting portions of the angle bars,

longitudinal edges and joining each other in,

- ing at their ends and at their longitudinal break-joint. order at their longittulinal edges,

angle bars secured to the longitudinal edges; of the sections and pro ecting outwardly therefrom, oint-bolts uniting the outwardly longitudinal edges and joining each; other in break-joint order at theirlongitudinal edges,' angle bars secured to the inner surfaces of the 3. 4L sheet metal pipe eon'iprising, scgmental sections oinnig at their ends and at their longitudinal edges of the sections and pro- 5 et-ting outwardly therefrom, and oint-bolts uniting the outwardly projecting portions of the angle bars, combined subsl antrally set forth.

4. A sheet metal pipe comprising, segmen-- tal sections oining at their ends and at their longitudlnal edges and oining each other m break-joint order at their longitudinal edges,

an end-of a section entering within the contlguous end of the succeeding section, angle bars secured to the longitudinal edges of the sections and )rojecting outwardly therefrom, and joint-b0 ts uniting the outwardly .projecting portions of the angle bars, combined substantially as set forth; 7

5. A sheet metal pipe comprising, transversely corrugated segmental sections joined es and joining each. otherin break-joint or er at their longitudinal-edges, angle bars secured to the longitudinaledges of thesections and. projecting outwardly therefrom, and joint-bolts unitlng the outwardly projeoting portions of the angle bars, com'bmed substantially as set forth.

6. A sheet 'metal pipe comprising, transversely corrugated segmental sections joining at theirends and at their'longitudinal edges and joining each other in break-joint f order at their longitudinal edges, one end of a given section entering within the contigw ous end of the succeeding section to such. extent that one corrugation will overlap another, angle bars secured to the longitudinal edges of the sections and projecting outwardly therefrom, and joint-bolts uniting the outwardly projecting portions of the angle bars, combined substantially as set forth.

7. A sheet metal pipe comprising, a segmental section transversely corrugated and having a greater circumferential dimension at one endlhan at the other, and angle bars secured to the longitudinal edges of the section and projecting outwardly therefrom and perforated to receive'joint bolts, combined 5 substantially as set forth.

.8. A sheet metal pipe comprising, a segmental section transversely corrugated and having a greater circumferential dimension at one end than at the other, and angle bars secured to the inner portions of the longitudin al edges of the section and projecting outwardly therefrom and perforated toreceive joint bolts, combined substantially as set forth.

' 9. A sheet metal pipe comprising, transversely corrugated segmental sections joining at their ends and at their longitudinal edges and joining each other in break-joint order at their longitudinal edges, angle bars secured to the longitudinal edges of the sections and pro- -jecting outwardly therefrom, the flanges of the angle bars which attach to the edgesof the sections being :zrimped to conform to. the corrugated surfaces to which they are secured, and joint bolts uniting the outwardly )rojecting portions of the angle bars, COIII- lnned suhstai'itially as set forth.

' GEORGE HERBERT (lllilllliS. Witnesses:

it. (i. PnILLIPs,

R. CARNAHAN, Jr. 

